Title: Unit 7 Glossary
Course: ELT 260 Introduction to Hydropower > Section: ELT 260 Introduction to Hydropower

Unit 7 Glossary

Terms

Term | Definitions
Demand | the rate at which electric energy is delivered to or by a system, part of a system, or a piece of equipment. It is expressed in kilowatts, kilovolt amperes, or other suitable units at a given inst ...
Diversion | sometimes called run-of-river, facility channels a portion of a river through a canal or penstock.
Head | The vertical change in elevation expressed in either feet or meters, between the reservoir (“head water”) level and the downstream river (“tailwater”) level.
Impoundment | a hydropower system that uses a dam to store water in a reservoir.
Meter | the fundamental unit of length in the metric system, equivalent to 39.37 U. S. inches.
Off Peak Hours | the period of least frequent or lightest use: consumers will have the lowest rates for electrical power during this time.
Peak Demand | a period of strong consumer demand or use.
Pumped storage | is a method of storing and producing electricity to supply high peak demands by moving water between reservoirs at different elevations.
Pumped Storage | in a hydropower  the  use of two water reservoirs which are separated vertically to store power.
Reservoir | a large tank or natural or artificial lake used for collecting and storing water for human consumption or agricultural use.
Run-0f-the-River | a type of hydroelectric facility that uses the river flow with very little alteration and little or no impoundment of the water.